Thinning Decisions Using Stand Density Indices: The Influence of Uncertainty
Author(s) -
Mark J. Ducey,
Bruce C. Larson
Publication year - 1997
Publication title -
western journal of applied forestry
Language(s) - English
Resource type - Journals
eISSN - 1938-3770
pISSN - 0885-6095
DOI - 10.1093/wjaf/12.3.89
Subject(s) - thinning , sampling (signal processing) , sample (material) , statistics , process (computing) , computer science , econometrics , mathematics , forestry , geography , chemistry , filter (signal processing) , chromatography , computer vision , operating system
In practice, stand density indices must be estimated from sample data, leading to uncertainty in both estimates of stand density and resulting thinning decisions. We provide a statistical framework for thinning decisions based on density thresholds. We show how to assess the adequacy of existing cruise data to guide the thinning process, and to design more cost-effective sampling plans. We present this information in a series of graphs which, when used in conjunction with density management diagrams, can improve rational thinning decisions. West. J. Appl. For. 12(3):89-92.
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